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Old 01-08-2012, 03:53 PM   #1
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Default help determining ABV
I goofed when brewing my IIPA yesterday, took my gravity reading prior to adding 102oz of water to my wort (came in at 1.100!). After transferring to my 6gal carboy I added the 102oz (apprx 3/4 gal) of water and my turkey baster wouldn't reach to wort to pull the more accurate OG. Any way I can estimate my OG knowing that it was 1.100 prior to adding 102oz of spring water? Any help/insight would be appreciated..
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Old 01-08-2012, 03:57 PM   #2
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Try this copy & paste into your browser.

Dave's Dreaded Actual Specific Gravity Calculator

It's a fun tool to calculate ABV
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Old 01-08-2012, 04:04 PM   #3
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According to Beer Smith II

Assuming you started with 4.25 gallons of 1.100 wort then added 102 oz of water, the gravity will be 1.084
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Old 01-08-2012, 04:28 PM   #4
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According to Beer Smith II

Assuming you started with 4.25 gallons of 1.100 wort then added 102 oz of water, the gravity will be 1.084
Much appreciated Dan!
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Old 01-10-2012, 12:40 AM   #5
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Brew software takes a lot of guess work out of brewing!
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Old 01-10-2012, 12:52 AM   #6
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Abv=og-fg*131.25
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Old 01-10-2012, 04:59 PM   #7
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adjusted OG = starting OG * starting volume / adjusted volume
100 * 4.25 / 5 = 1.085
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